Gas-stove



(No Model.)

J. A. PREY.

GAS STOVE.

No. 424,967. Patented Apr. 8. 1890.

n. mzns. PhcloLithognpher. Wllhlngmm 0.1;

o drum.

UNITED STATES PATENT OFFICE.

JOHN A. FREY, OF BROOKLYN, NEIV YORK, ASSIGNOR TO VILLIAM VOGEL & BROTHERS, OF SAME PLACE, AND CHARLES E. FREY, OF JERSEY CITY,

NEYV JERSEY.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 424:,967, dated April 8, 1890.

Application filed December 30, 1889- Serial No. 335,319. (No model.)

To all whom it may concern.-

Be it known that I, JOHN A. FREY, of Brooklyn, county of Kings, State of New York, have invented a'new and useful Im- 5 provement in Gas-Stoves, which improvement is fully set forth in the following specification. This invention has reference to gas-stoves constructed on the principle of the Bunsen burnerthat is to say, designed to consume To a mixture of gas and atmospheric air; and the object of the invention is to produce a gas-stove of this type which, by reason of its great simplicity, can be easily constructed and sold at a very low price. Gas-stoves of I 5 this character usually consist of a cylinder or drum of sheet metal mounted on a suitable base and having at the top a spideror frame for supporting cooking utensils and one or more burners within the drum or cylinder. According to this invention the burners or parts within the cylinder are wholly dispensed with, the drum is provided with a perforated top united to the body thereof by a head or flange on the latter, and a foraminous disk or 2 5 diaphragm is held between this top and the body of the drum. The drum is mounted on a base or casting which is perforated for the admission of air in small streams, and a gassupply tube is also led tothe bottom of the The drum or stove'body thus becomes the mixing-chamber and burner, the mixture of air and gas being ignited at the perforations in the top plate.

The flange or bead above referred to forms 3 5 a rest for the spider-frame or crown upon which cooking utensils or other articles to be heated are placed, and the parts are all held together by a single bolt passing centrally through the base, drum, and spider.

The accompanying drawing, which forms part of this specification, illustrates in central vertical section a gas-stove constructed in accordance with the invention.

A represents the base, which is a casting of 5 suitable form. It has on top a circular flange a, over which fits the drum B, preferably of sheet metal. The top of base A within flange a has a number of small perforations b for the free admission of air. The gas is supplied from a tube cl at the bottom of the drum.

At the top of drum B is formed a flange or bead c, the edge being overlapped, so as to clamp and hold a foraminous disk or diaphragm C and aperforated top plate D. The latter is preferably of sheet-iron with the 5 5 perforations punched out. The edge of said plate is turned down, so that a thin space is formed between it and the foraminous disk C, the plates being held apart by a washer e. The joint at the top of the drum should of course be made air-tight. The flange or bead 0 forms a rest for the crown-piece or spiderframe E, upon which the articles to beheated are placed when the stove is in use.

The parts described, which all admit of ready'and cheap construction, are assembled as shown in the drawing, andabolt f is passed through the base A, drum B, disk C, washer e, perforated top plate D, and crown-piece or spider E. The lower end of bolt f is hooked under the gas-tube d and the upper end is threaded for engagement with the clampingnut g, which,being screwed down upon spider E, holds all the partstogether. They may be separated by removing the nut and bolt. The 7 5 gas-tube (I may of course be soldered or brazed onto the base A.

WVhen the stove is in use, the air and gas enter at the bottom of the drum B, which con stitutes the mixing-chamber as well as the body of the stove, and, passing through the foraminous disk C, become intimately mixed and in a condition favorable to perfect combustion. The combustible mixtureisignited as it issues through the perforations of top plate I).

It is obvious that modifications may be made in details of construction without departing from the spirit of the invention. For example, the chamber B is shown as cylindrical in shape, this form being deemed the most convenient; but the shape of the parts is not of the essence of the invention, and could be varied, if desired for any reason.

I claim as my invention- 1. In a gasstove, the combination of the base having perforations for the passage of air and gas, the drum constituting a mixingchamber and also the stove-body, a perforated top plate constituting the burner, and a foraininons diaphragm clamped between the i op plate and drum, substantially as described.

2. In a gas'stm'e, the combination of the base having gas and air passages, the (lllllll resting thereon, the perforated top plate socured to the drum by a flange or bead at the upper end thereof, the foraminons diaphragm held between said plate and drum, and the crown-piece or spider resting upon said flange or bead, substantially as described.

3. A gas-st0ve comprising, in combination, the following elements: a base provided with air and gas passages, a drum having a perforated top secured thereto bya flange or bead,

JOHN A. FREY.

\Vitnesses:

O. (I. PATTERSON, FRED J. GANs. 

